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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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How much of earth water is fresh water and how is it broken down? |
2.5% fresh water( 97.5% salt water) 69% frozen 30% underground 1% vapor, moisture, etc |
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How much how the earths fresh water the Great Lakes contain. |
18% Water vapor limited from plant leaves. |
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What factors determine water quality? |
Taste, clarity and odour |
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What type of water is low in mineral content, high is contamination potential and must be treated? |
Surface water |
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What water type is low on contamination and high in mineral content? |
Groundwater |
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One grain or hardness(us gal) = ___ mg/l or ___ ppm |
17.1mg/l or 17.1 ppm |
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One grain /imp gal= ___ mg/l or ___ ppm |
14.3 mg/l or 14.3 ppm |
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Water is considered hard from how many gpg? |
Moderately hard 1- 1.5 gpg
Soft 0.5 gpg Moderately soft 0.5-1 gpg Moderately hard 1- 1.5 gpg Hard 1.5 -2 gpg Very hard 2+ gpg |
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When does hardness in water makes water unit for human consumption? |
Over 12 gpg |
Gpg |
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At what temperature does temporary hardness settle? |
Above 60c in Hwt |
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Above what temperature does permanent hardness settle? |
In steam above 148c |
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Temporary hardness + permanent hardness= |
Total hardness |
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Hardness is composed of Calcium and Magnesium salts in form of : |
Carbonates Sulfates Chlorides Nitrates |
Hats and hides. 🤠🐮 |
